A nurse is caring for a client who is receiving oxygen at 2 L/min via a nasal cannula. The nurse recognizes the client is receiving which of the following inspired oxygen concentration?
36%
70%
50%
28%
The Correct Answer is D
D. 28%:
When a client receives oxygen via a nasal cannula at a flow rate of 2 L/min, the approximate inspired oxygen concentration is around 24-28%. This is because each liter of oxygen delivered through a nasal cannula adds approximately 4% to the baseline room air concentration of 21%. Therefore, at 2 L/min, the client would be receiving approximately 24-28% inspired oxygen concentration.
A. 36%, B. 70%, C. 50%:
These percentages are not consistent with the oxygen concentration delivered via a nasal cannula at 2 L/min. Higher flow rates or alternative oxygen delivery systems, such as masks or high-flow nasal cannula, would be needed to achieve these concentrations.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Turn the client on his side before starting oral care: This is the correct action. Turning the client on their side helps prevent aspiration of oral secretions or fluids during oral care, especially for an immobile client who may have difficulty swallowing or managing oral secretions effectively. Positioning the client on their side also facilitates better access to the oral cavity for oral care procedures.
B. Use the thumb and index finger to keep the client's mouth open: Using the thumb and index finger to keep the client's mouth open may cause discomfort or injury to the client. Instead, it's essential to encourage the client to open their mouth gently or use an appropriate oral device to keep the mouth open during oral care.
C. Apply petroleum jelly to the client's lips after oral care: Applying petroleum jelly to the client's lips after oral care can help keep the lips moisturized and prevent dryness. However, it is not the most immediate action necessary for oral care. Ensuring proper positioning and cleaning of the oral cavity take precedence during oral care for an immobile client.
D. Use a stiff toothbrush to clean the client's teeth: Using a stiff toothbrush can cause damage to the client's oral tissues, especially if the client has impaired oral hygiene or compromised oral health. It's essential to use a soft-bristled toothbrush or sponge swabs for oral care to prevent injury or trauma to the oral mucosa, especially in clients who are immobile.
Correct Answer is D
Explanation
A) Disenfranchised grief:
Disenfranchised grief occurs when a person's loss is not socially recognized or supported, such as the death of a pet or an ex-spouse. The client's situation does not indicate disenfranchised grief.
B) Anticipatory grief:
Anticipatory grief happens before an impending loss, such as when a loved one is terminally ill. The client is grieving after the loss, not before it.
C) Prolonged grief:
Prolonged grief, also known as complicated grief, involves intense, persistent, and disabling grief symptoms that interfere with normal functioning. The client’s decreasing grief and positive outlook indicate that they are not experiencing prolonged grief.
D) Uncomplicated grief:
Uncomplicated grief, also known as normal grief, is the natural response to loss. It includes a range of emotions and reactions that typically diminish over time as the individual adapts to the loss. The client’s decreasing grief severity and forward-looking attitude towards spending time with their grandchildren are characteristic of uncomplicated grief.
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